I have three Voigtlander pancakes for my Df, all in focal lengths that correspond pretty closely to a similar trio of Zeiss ZF, just to have a real minimalist kit for when I want to go really light (ie, the Df with one lens on a strap and the other two lenses in coat pockets). I have the Color Skopar 20mm f3.5, the Color Skopar 28mm f2.8, and the Ultron 40mm f2.0. Of these, the 40 is clearly the best and the 20 is clearly the worst, but I use the 20 by far the most just because of focal length preference. I haven\'t used the 28 very much, not because I don\'t like the focal length, but because I have so many other options at or very close to that field of view.
So anyway, here are several shots from the 20 (which really isn\'t bad at all stopped down) and a couple from the 40mm...
